Home / 55,655.29-76,809.63-31,785.54

Finding the Fourth Proportional to 55,655.29, 76,809.63 and 31,785.54

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Solution

The fourth proportional to 55,655.29, 76,809.63 and 31,785.54 is: 43,867.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,655.29 : 76,809.63 = 31,785.54 : x
  2. Step 2: Convert to fraction form
    55,655.29/76,809.63 = 31,785.54/x
  3. Step 3: Cross multiply
    55,655.29x = 76,809.63 × 31,785.54
  4. Step 4: Simplify right side
    55,655.29x = 2,441,435,566.75
  5. Step 5: Solve for x
    x = 2,441,435,566.75/55,655.29
  6. Step 6: Final answer
    x = 43,867.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.